Accommodating intraocular lens with outer support structure
View Patent ↗An intraocular lens for insertion into the capsular bag of an eye contains an optic, an outer periphery, and an outer support structure. The optic has a periphery and centered about an optical axis. The outer periphery is disposed about the optic and configured to engage an equatorial region of the capsular bag of an eye. The outer support structure is disposed along the periphery and spaced from the optic with voids outer support structure and the optic. The intraocular lens further comprises a first intermediate member and a weakened region disposed along the outer periphery between the outer support structure and the first intermediate member. The first intermediate member operably couples the optic and the outer support structure. The weakened region is attached to, and configured to provide relative motion between, the outer support structure and the first intermediate member in response to the ciliary muscle of the eye.
1. An intraocular lens, comprising:
an optic disposed about an optical axis;
a support structure at least partially disposed at an outer periphery of the intraocular lens, the support structure comprising:
an arcuate member continuously disposed along the outer periphery comprising an inner circumferential surface and an outer circumferential surface, the arcuate member spaced from the optic;
a force transfer assembly comprising a plurality of intermediate members extending between the optic and the arcuate member, wherein the force transfer assembly is configured to deform and/or axially move the optic in response to ciliary muscle and/or capsular bag movement;
weakened regions in the form of indentations or grooves disposed along the outer circumferential surface of the arcuate member.
2. The intraocular lens of claim 1 , wherein the outer periphery of the intraocular lens is circular.
3. The intraocular lens of claim 1 , wherein the plurality of intermediate members is comprised of a first intermediate member and a second intermediate member both extending between and operably coupling the optic and the outer structure.
4. The intraocular lens of claim 3 , wherein the weakened regions are circumferentially disposed between the first intermediate member and the second intermediate member.
5. The intraocular lens of claim 1 , wherein the weakened regions are radial thickness that is less than a radial thickness of the outer structure in regions proximal to the weakened regions.
6. The intraocular lens of claim 1 , wherein the weakened regions have a thickness in a direction parallel to the optical axis that is less than a thickness in a direction parallel to the optical axis of the outer structure in regions proximal to the weakened regions.